Profile: KaVo Dental GmbH develops dental products and other surgical equipments. The surgery and implantology study models are based on a rigid foamed material with bone-like structure and soft gingiva, which is ideally suited to cutting and sewing. The KaVo root teeth in the surgery model are arranged in a manner typical for treatment, including ectopic 3 and 8. The surgery models are divided into 4 comparable quadrants & can thus be used by several students. The toothless implantology models have nerve canals in the lower jaw and nasal & accessory canals in the upper jaw. They are also very suitable for complete prosthetic on soft gingiva. Our PREPassistant is the new KaVo system for measuring and evaluating preparations in dental training. It is also suitable for measuring ceramic crowns, wax models and later on also 3-unit bridges.